This post helps in fixing a AMD chipset based issue in Windows 7 or Windows Vista with stop error ( blue screen ) 0x0000009F or 0x000000FE. Both these error codes can be associated with some other problems too. But this problem being AMD chipset or specifically with some AMD EHCI drivers, that when put on standby or left Idle can crash your system with error codes mentioned above.

There are two very simple methods to fix this issue:

Method 1 : Microsoft Fixit ( Automated Fix )

Click on the picture above to open the Fix it link

Download the fix and run it

Restart your Computer

Method 2 : Turning off some power management features

Go to the start menu ( you can also use Run ( windows logo key + R )

type in devmgmt.msc& press enter

This will open device manager

Now, expand the section that says Universal Serial Bus Controllers

Right Click USB root hub

Click on properties

Click on power management tab

uncheck Allow the Computer to turn off this device to save power

Press Ok

Restart your computer

Check your system for problem

If you still face a problem, please use the comment section and I will try to help you